| DEAKES, Joanne Claire ACTIVE | Director | 10 Dec 2025 | | England | October 1976 | Office 2, Harry Brearley House, 6 Fox Valley Way, Stocksbridge, Sheffield, S36 2AE, England |
| ERRINGTON, Laura Jane ACTIVE | Director | 10 Dec 2025 | | England | January 1985 | Office 2, Harry Brearley House, 6 Fox Valley Way, Stocksbridge, Sheffield, S36 2AE, England |
| HUGHES, Anthony ACTIVE | Director | 16 Jan 1998 | | England | May 1959 | Office 2, Harry Brearley House, 6 Fox Valley Way, Stocksbridge, Sheffield, S36 2AE, England |
| MASSEY, Rachel Louise ACTIVE | Director | 10 Dec 2025 | | England | November 1973 | Office 2, Harry Brearley House, 6 Fox Valley Way, Stocksbridge, Sheffield, S36 2AE, England |
| RICHMOND, Timothy Stewart ACTIVE | Director | 30 Jul 2007 | | United Kingdom | November 1947 | Office 2, Harry Brearley House, 6 Fox Valley Way, Stocksbridge, Sheffield, S36 2AE, England |
| RENDER, Peter Ben RESIGNED | Secretary | 08 Feb 1998 | 10 Oct 2005 | | | 1 Village Gardens Colton, Leeds, West Yorkshire, LS15 9BL |
| ROBERTS, Paul Gareth RESIGNED | Secretary | 26 Feb 2014 | 31 Aug 2017 | | | Hoober House, Wentworth, Rotherham, South Yorkshire, S62 7SA |
| SHARPE, Anthony Howard RESIGNED | Secretary | 16 Jan 1998 | 08 Feb 1998 | | | 5 Dearne Park, Clayton West, Huddersfield, West Yorkshire, HD8 9NB |
| WATSON, Karen Sinclair Suzanne RESIGNED | Secretary | 11 Jun 2007 | 06 Mar 2013 | | | 1 Medway Place, Wombwell, Barnsley, South Yorkshire, S73 0RS |
| WATSON, Karen Sinclair Suzanne RESIGNED | Secretary | 10 Oct 2005 | 30 May 2007 | | | 1 Medway Place, Wombwell, Barnsley, South Yorkshire, S73 0RS |
| WILSON, Paul RESIGNED | Secretary | 06 Mar 2013 | 04 Aug 2014 | | | Hoober House, Wentworth, Rotherham, South Yorkshire, S62 7SA |
| WOOD, Gillian RESIGNED | Secretary | | 16 Jan 1998 | | | 43 Hillcrest Road, Deepcar, Sheffield, South Yorkshire, S30 5QL |
| CASTLEGATE SECRETARIES LIMITED RESIGNED | Secretary | 30 May 2007 | 11 Jun 2007 | | | 44, Castle Gate, Nottingham, Nottinghamshire, NG1 7BJ |
| BAILEY, Simon Valentine RESIGNED | Director | | 16 Jan 1998 | | September 1951 | 10 Thornsett Road, Sheffield, South Yorkshire, S7 1NB |
| BLADON, Allen RESIGNED | Director | 19 Jun 2007 | 01 Apr 2011 | United Kingdom | February 1951 | 174 Crimicar Lane, Fulwood, Sheffield, South Yorkshire, S10 4EJ |
| BREARLEY, Arthur, Dr RESIGNED | Director | | 16 Jan 1998 | | August 1928 | Sheringham House, Ladybrook Road Bramhall, Stockport, Cheshire, SK7 3NB |
| CUTHILL, Johanna Elizabeth RESIGNED | Director | 19 Jun 2007 | 31 Mar 2026 | United Kingdom | June 1961 | Office 2, Harry Brearley House, 6 Fox Valley Way, Stocksbridge, Sheffield, S36 2AE, England |
| DAHLBERG, Lars Roland RESIGNED | Director | | 31 Mar 1995 | | May 1960 | Slottsskogsgatan 107b, 414 76 Goteborg Sweden |
| FREEDMAN, David Anthony RESIGNED | Director | 01 Dec 2009 | 12 Sep 2012 | Great Britain | December 1961 | Hoober House, Wentworth, Rotherham, South Yorkshire, S62 7SA |
| GRAHAM, Richard RESIGNED | Director | 16 Jan 1998 | 20 Apr 2001 | | May 1947 | Meranti Crabgate Lane, Skellow, Doncaster, South Yorkshire, DN6 8RA |
| GRAHAM, Richard RESIGNED | Director | | 31 Mar 1995 | | May 1947 | 16 Church Lane, Adwick Le Street, Doncaster, South Yorkshire, DN6 7AQ |
| MIDGLEY, Bernard RESIGNED | Director | | 16 Jan 1998 | | January 1944 | Rotherwood The Green, Penistone, Sheffield, South Yorkshire, S30 6BL |
| RENDER, Peter Ben RESIGNED | Director | 08 Feb 1998 | 10 Oct 2005 | England | February 1958 | 1 Village Gardens Colton, Leeds, West Yorkshire, LS15 9BL |
| SHARPE, Anthony Howard RESIGNED | Director | 16 Jan 1998 | 31 Dec 2004 | | April 1951 | Dovecote Barn, Park Lane Emley, Huddersfield, HD8 9SS |
| THURLOW, Stephen RESIGNED | Director | 16 Jan 1998 | 22 Apr 2001 | | November 1955 | 18 Fox Grove, Warmsworth, Doncaster, South Yorkshire, DN4 9PF |
| WATSON, Karen Sinclair Suzanne RESIGNED | Director | 01 Apr 2008 | 30 Jun 2013 | Great Britain | June 1957 | 1 Medway Place, Wombwell, Barnsley, South Yorkshire, S73 0RS |